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Old 16-12-17, 11:07
Lang Lang is offline
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Join Date: Jan 2004
Location: Brisbane Australia
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Default

I would strongly recommend it. I have fitted after market vacuum units to several Dodges (my current WC53 stops better than a brand new Landcruiser) and a number of civilian older commercial vehicles.

Don't know about the GM Hydrovac unit but the generic units are cheap and can be fitted in a couple of hours.

The easiest, cheapest and most practical way to get modern braking on an old vehicle.

Lang
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Old 16-12-17, 14:29
Phil Waterman Phil Waterman is offline
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Join Date: Feb 2003
Location: Temple, New Hampshire, USA
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Default What CMP and dose it have the booster linkage

Hi Lar

Questions before proceeding the original CMP brake booster as used on C60 series has a special linkage which is necessary to make it function.

There are several threads on MLU on the topic which I will try and find and post links. Here is one http://www.mapleleafup.net/forums/sh...ter#post220149

Having said that the booster makes the brakes on both my C60S & C60L have good brakes with out the booster these trucks with a full load would not be safe to drive over 25-30 MPH the stopping distance would be to great above that speed.

Last time I serviced one of my boosters decided to measure the boost at 15 inches of vacuum the mechanical force exerted by the booster was around 325 LBS. Now to figure additional force on the master cylinder you would need to work through all the math of the linkage pivot arms in the linkage.

Cheers Phil
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Last edited by Phil Waterman; 16-12-17 at 14:48. Reason: add information
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